[Sab] Sablot library & dynamic_cast problem

[Mark Turner]

Hi

We have been developing some apps using the Sablot 0.50 library and have recently found a problem and traced it back to Sablotron. Below is some test code which causes a Segmentation Fault when doing a dynamic_cast, but only when I link the sablot ( &expat ) shared libraries.

#include <stdio.h>
#include <sstream>
//#include "sablot.h"

class A
{
public:
        virtual void dostuff() { std::cout << "A" << std::endl; }
};

class B : public A
{
public:
        void dostuff() { std::cout << "B" << std::endl; }
};

void doit(A& a)
{
        try
        {
                B& b = dynamic_cast<B&>(a);                // this dynamic cast causes a SEGMENTATION FAULT
                b.dostuff();
        }
        catch( ... )
        {
                std::cout << "bad cast" << std::endl;
        }
}

int main()
{
        std::cout <<"start..."<<std::endl;

        A* a = new A();
        A* b = new B();

        doit(*b);                        // this fails

        return 1;
}


Were using Red Hat 7.0. Has anyone else experienced these problems?

thanks

Mark Turner